I've worked for Robert Half in other states, which was okay, but the one in Phoenix is absolutely horrible. First, I was getting a bunch of "urgent need" emails from this Michael Casas person, only to never have him respond to my replies to his emails. Second, I was contacted by one of the recruiters (Sabriya) constantly for a direct-hire position (facetime, phone, email and text messages after hours) and went on an interview with the client company and pretty much had the job. However, Sabriya's manager, Kathleen, in my opinion have a superiority complex, wanted me to come in to "talk" to her during weird hours with little to no notice, which would have been okay if I did not have other interviews scheduled, as I have told Sabriya up front that I was actively looking and am currently working. Anyhow, I believe that because I didn't cater to Kathleen's "talking" schedule (although, I agreed to a phone meeting when asked, but have not heard back), they more than likely told the client that I was no longer interested, which is unprofessional and unethical.
There are much better staffing agencies out there that are more professional. My advice is to steer clear of this one.